Ratio Method for Single Component Gas Analysis using Doped Tin Oxide Thick Film Sensors

Abstract

In this paper, a novel discrimination technique called Ratio method for the analysis of sensor responses to detect the gas/odour present in an environment is presented. To test the developed method, initially two doped tin oxide (ZnO+ Sb₂O₃ and ZnO) sensors were fabricated using thick film screen printing technique. The responses of these sensors were studied for CCI₄, CH₂CI₂ and C₂HCI₃, and the results thus obtained were used to illustrate the ratio method.

Indexing terms:

• Gas analysis
• Ratio method
• Thick film sensor